20303458252 has 48 divisors (see below), whose sum is σ = 44393626368. Its totient is φ = 7893443520.

The previous prime is 20303458247. The next prime is 20303458267. The reversal of 20303458252 is 25285430302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73258 + ... + 214414.

It is an arithmetic number, because the mean of its divisors is an integer number (924867216).

Almost surely, 2^20303458252 is an apocalyptic number.

20303458252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20303458252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22196813184).

20303458252 is an abundant number, since it is smaller than the sum of its proper divisors (24090168116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20303458252 is a wasteful number, since it uses less digits than its factorization.

20303458252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141646 (or 141644 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 20303458252 its reverse (25285430302), we get a palindrome (45588888554).

The spelling of 20303458252 in words is "twenty billion, three hundred three million, four hundred fifty-eight thousand, two hundred fifty-two".